The 2 In 1 Breathable Twilight 5 Inch Spring Coil Crib And Toddler Bed Mattress With Reversible Design is safe, functional and feature heavy! It’s Greenguard Gold Certified to ensure optimum health and safety, JPMA certified to meet/exceed all safety standards set by CPSC/ASTM & passes all flammability (16 CFR 1632/1633) tests. It features a reversible design: A white infant side covered with breathe-flow material and a brown-print toddler side with waterproof cover with lock stitch seams. The reinforced waterproof cover and binding resist liquids and stains. It is the ideal balance of comfort and support for your child thanks to 88 durable, interwoven, heat tempered, steel spring coils. It also has CertiPUR-US certified foam layers for cushioned comfort. Our mattresses are designed, engineered and proudly Made in the USA using environmentally friendly materials. It fits standard full size cribs and toddler beds. Dimensions: 51.75L x 27.5W x 5H inches. Easy to maintain; simply wipe clean with mild soap and water. Please ensure mattress covers or fitted sheets are not too tight or loose over a crib mattress for safe sleeping.